Creamy Edamame Arugula Soup - Uncle Vinny's Produce

Ingredients

• 1 teaspoon soybean oil (often labeled "vegetable oil")
• 1 small onion, diced
• 3 cups frozen edamame (shelled)
• 2 cups low-sodium vegetable or chicken broth
• 1 cup plain soymilk
• 1 cup baby arugula leaves, packed
• 1/2 teaspoon salt, or to taste
• 1/4 teaspoon ground black pepper
• Greek-style yogurt (optional)